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ESS Vietnam Thermal Energy Storage Tank Solution
Energy Saving & Cost Optimization
ESS Vietnam Thermal Energy Storage (TES) Tank solution is a system that stores cold energy in the form of ice or chilled water, produced during off-peak hours (when electricity is cheap) and used to supply cooling load for air conditioning systems or central cooling during peak hours (when electricity is expensive).
Structure and Operating Mechanism
ESS Thermal Energy Storage Tanks are constructed from steel or concrete, filled with water, and fitted with polyethylene heat exchanger coils.
Charge: Produce and Store Cold Energy. During off-peak hours, the chiller cools glycol solution down to -4oC. This solution flows through the coils, freezing the surrounding water, thereby storing cold energy.
Discharge: Supply Cooling to Load. When cooling is needed (during peak hours), the ice in the tank melts. Glycol solution absorbs cold from the ice, then it is pumped to cooling equipment (AHU, FCU) at temperatures of 34-38oF (1.1-3.3oC).
Comprehensive Benefits of ESS Solution
The Thermal Energy Storage Tank solution brings practical economic, technical, and environmental benefits to all stakeholders.
For Investors
(Economic and Operational)
- Reduce cooling costs by up to 40% by shifting chiller operation to off-peak hours.
- With partial storage mode, designers can reduce chiller capacity by 30 to 60%, thus lowering installation costs.
- Reduce cooling tower size and cost by up to 30%.
- Using a TES Tank reduces air humidity, which in turn meets human comfort needs, allowing the thermostat to be set higher, meaning reduced operating costs.
- A TES Tank can be connected to an existing chiller system to both increase cooling capacity and reduce cooling costs.
For Energy Providers
(Electricity Grid)
- TES Tanks reduce electricity demand during peak hours and therefore increase power plant generation capacity.
- Many studies show that electrical energy is transmitted better during off-peak hours. Each kilowatt-hour of electricity shifted from peak to off-peak use reduces the fuel required to produce it (approximately 8% to 30%), simultaneously lowering power plant greenhouse gas emissions.
- Reduce peak load for electricity providers.
For Environment
and Society (Sustainability)
- TES Tanks make the storage of energy from new sources (solar, wind energy) more feasible.
- Reduce emissions and the use of polluting power plants (due to reduced peak load).
- Reduce the need to build additional power plants.
- Using TES Tanks reduces chiller size, thereby decreasing the amount of refrigerant and minimizing its leakage into the environment.
ESS Vietnam Technology
ESS Vietnam solution uses technology transferred from Switzerland but has been improved to optimize performance based on actual conditions:
Climate Conditions:
Ensuring stable efficiency in humid tropical environments.
Electricity Price Structure:
Maximizing the benefit of shifting cooling load to off-peak hours to achieve maximum cost savings for investors.
Maximizing the benefit of shifting cooling load to off-peak hours to achieve maximum cost savings for investors.
Cooling with Chiller system combined with TES Tank
Large cooling demand, ensuring peak load
Cooling with Chiller system
Normal hour electricity
Tank in discharge mode
Peak hour electricity
Tank in charge mode
Off-peak hour electricity
ESS Vietnam Services & Deployment Process
Survey: Feasibility Study, Project Analysis
Detailed technical and financial evaluation (Investment, Operating Costs, Payback Period). Ensuring project profitability.
Design: TES Tank Design Consultation
A team with 30 years experience designs optimal solutions, using improved Swiss technology suitable for Vietnam.
Deployment: Supply, Construction Installation, Commissioning
Ensuring precise, quality installation according to standards, and successful trial operation.
Monitoring & Optimization: System Monitoring, Optimization & Support
Continuous monitoring and optimization of the system after operation, ensuring stable and efficient performance.
Continuous monitoring and optimization of the system after operation, ensuring stable and efficient performance.
ESS Vietnam TES Tank solution is not just a technology investment, but a strategy that helps businesses manage energy smartly, minimize cost risks, and contribute to sustainable development goals.
Solutions
Thermal Energy Storage (TES) Tank
Smart energy storage, reducing peak electricity costs. Leverage electricity price differences by cooling at night for daytime demand. Optimize the efficiency of the cooling system.
Renewable Energy Installation
Providing clean, sustainable energy sources. Integrating solar power systems, and Heat Pumps to reduce reliance on the grid and achieve green building standards.
Energy Saving System
Ensuring superior performance, optimizing operating costs. In-depth analysis and implementation of technical solutions, from HVAC to lighting, effectively reducing energy consumption.
Optimizing Green Building Operation
Enhancing building quality and achieving international green certification. Combining 30 years of engineer experience and technology to manage and control systems, helping buildings achieve optimal scores in energy efficiency.
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Energy Monitoring Solution
Real-time monitoring, analysis, and control of energy systems. Utilizing technology to oversee the charge/discharge process of the Ice Bank and the entire system, ensuring maximum productivity.
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